infant human 84 Humans 70 Infant 64 child 58 female 58 male 56 article 54 Female 52 Male 52 Child, Preschool 50 preschool child 42 Child 40 adolescent 40 adult 40 newborn 38 Adolescent 36 Adult 36 Argentina 36 Infant, Newborn 32 controlled study 32 priority journal 30 major clinical study 26 Animals 24 Article 22 animal 22 aged 16 Middle Aged 14 Aged 12 Chagas Disease 12